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sem-5

Gene
sem-5
Protein
Sex muscle abnormal protein 5
Organism
Caenorhabditis elegans
Length
228 amino acids
Function
Adapter protein which modulates signaling mediated by several receptor tyrosine kinases such as egl-15 and let-23 probably acting upstream of let-60/ras. Negatively regulates vulva induction probably downstream of let-23 (PubMed:1372395, PubMed:16547100). Involved in sex myoblast migration (PubMed:1372395, PubMed:9073451). Negatively regulates fluid homeostasis probably downstream of egl-15 (PubMed:1372395, PubMed:11689700). During the formation of neuromuscular junctions at the larval stage, negatively regulates membrane protrusion from body wall muscles probably downstream of egl-15 (PubMed:16495308). Involved in cytoskeleton dynamics and is recruited by mig-13 to the leading edge of Q neuroblasts and their descendants to signal downstream to activate the wsp-1 pathway and direct migration along the anteroposterior body axis during larval development (PubMed:27780040). Involved in let-23-mediated regulation of fertility independently of let-60/Ras (PubMed:16547100). Negatively regulates daf-2-mediated repression of dauer formation (PubMed:16547100). Plays a role in nicotinic acetylcholine receptor (nAChR)-mediated sensitivity to nicotine (PubMed:15990870). Regulates synaptic levels of nAchR subunit lev-1 in the nerve cord (PubMed:15990870). May play a role in oocyte development upstream of let-60/Ras and the MAP kinase pathway (PubMed:12169634).
Similarity
Belongs to the GRB2/sem-5/DRK family.
Mass
26.21 kDa
Sequence
MEAVAEHDFQAGSPDELSFKRGNTLKVLNKDEDPHWYKAELDGNEGFIPSNYIRMTECNWYLGKITRNDAEVLLKKPTVRDGHFLVRQCESSPGEFSISVRFQDSVQHFKVLRDQNGKYYLWAVKFNSLNELVAYHRTASVSRTHTILLSDMNVETKFVQALFDFNPQESGELAFKRGDVITLINKDDPNWWEGQLNNRRGIFPSNYVCPYNSNKSNSNVAPGFNFGN